Clinical Practice of Transfusion Medicine

This third edition ofClinical Practice of Transfusion Medicinecontinues its previously established tradition of being a teaching text and ready reference. Having read, reviewed, and used the two previous editions, I feel comfortable now with where the editors are going. Much as the branch of science about which they write, they are adding small increments of improvement. The major writers, Petz and Swisher, admit in the overview that even though "present technologies still can be substantially improved... one must now examine the marginal value of these improvements." This seems to reflect the thinking of our day. If the technological jump is not to hyperspace, it is deemed hardly worth the financial effort. Nonetheless, the authors did persist in their own efforts not to succumb to such thinking. They add new editors, authors, and topics to this edition. They have maintained the backbone of reference and biological data. The major